Class information for:
Level 1: IONOSPHERIC IRREGULARITIES//SPORADIC E//SPORADIC E LAYER

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
9470 1153 26.1 55%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
19 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 523489
45 3       JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//ASTRONOMY & ASTROPHYSICS//SOLAR PHYSICS 95613
625 2             IONOSPHERE//JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//EQUATORIAL IONOSPHERE 13833
9470 1                   IONOSPHERIC IRREGULARITIES//SPORADIC E//SPORADIC E LAYER 1153

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 IONOSPHERIC IRREGULARITIES authKW 453399 7% 20% 84
2 SPORADIC E authKW 381319 2% 60% 24
3 SPORADIC E LAYER authKW 324519 2% 51% 24
4 MID LATITUDE IONOSPHERE authKW 192098 3% 19% 38
5 E REGION authKW 177962 1% 40% 17
6 PLASMA WAVES AND INSTABILITIES authKW 168560 3% 17% 37
7 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS journal 166555 10% 5% 115
8 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS journal 142299 28% 2% 324
9 FARLEY BUNEMAN INSTABILITY authKW 136190 1% 86% 6
10 SPACE ATMOSPHER STUDIES address 134548 4% 12% 42

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Meteorology & Atmospheric Sciences 22181 39% 0% 450
2 Astronomy & Astrophysics 19508 54% 0% 619
3 Geosciences, Multidisciplinary 7486 30% 0% 346
4 Geochemistry & Geophysics 5715 20% 0% 230
5 Remote Sensing 1700 5% 0% 62
6 Telecommunications 335 5% 0% 59
7 Engineering, Aerospace 265 3% 0% 29
8 Physics, Fluids & Plasmas 68 2% 0% 28
9 Physics, Multidisciplinary 10 3% 0% 37
10 Oceanography 5 1% 0% 11

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SPACE ATMOSPHER STUDIES 134548 4% 12% 42
2 GEOSPACE STUDIES 77820 2% 14% 21
3 PHYS EXOSPHERE 52964 0% 100% 2
4 RADIO OBSERV JICAMARCA 41062 1% 14% 11
5 GEOFIS PERU 31518 0% 24% 5
6 COSMOL UNIT 26482 0% 100% 1
7 CRT SPACE PHYS 26482 0% 100% 1
8 DIPARTIMENTO INGN INFORMAZ ELETTRON TELECOMMUNI 26482 0% 100% 1
9 GEOPHYS STUDIES 26482 0% 100% 1
10 GEOSCI STUDIES 26482 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 166555 10% 5% 115
2 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 142299 28% 2% 324
3 ANNALES GEOPHYSICAE 79888 9% 3% 106
4 ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES 38471 4% 3% 47
5 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 33078 6% 2% 68
6 GEOMAGNETIZM I AERONOMIYA 31913 6% 2% 65
7 RADIO SCIENCE 19332 5% 1% 58
8 GEOPHYSICAL RESEARCH LETTERS 12279 11% 0% 125
9 PLANETARY AND SPACE SCIENCE 3533 2% 0% 28
10 ADVANCES IN SPACE RESEARCH 3122 3% 0% 34

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 IONOSPHERIC IRREGULARITIES 453399 7% 20% 84 Search IONOSPHERIC+IRREGULARITIES Search IONOSPHERIC+IRREGULARITIES
2 SPORADIC E 381319 2% 60% 24 Search SPORADIC+E Search SPORADIC+E
3 SPORADIC E LAYER 324519 2% 51% 24 Search SPORADIC+E+LAYER Search SPORADIC+E+LAYER
4 MID LATITUDE IONOSPHERE 192098 3% 19% 38 Search MID+LATITUDE+IONOSPHERE Search MID+LATITUDE+IONOSPHERE
5 E REGION 177962 1% 40% 17 Search E+REGION Search E+REGION
6 PLASMA WAVES AND INSTABILITIES 168560 3% 17% 37 Search PLASMA+WAVES+AND+INSTABILITIES Search PLASMA+WAVES+AND+INSTABILITIES
7 FARLEY BUNEMAN INSTABILITY 136190 1% 86% 6 Search FARLEY+BUNEMAN+INSTABILITY Search FARLEY+BUNEMAN+INSTABILITY
8 E REGION IRREGULARITIES 132409 0% 100% 5 Search E+REGION+IRREGULARITIES Search E+REGION+IRREGULARITIES
9 FARLEY BUNEMAN WAVES 132409 0% 100% 5 Search FARLEY+BUNEMAN+WAVES Search FARLEY+BUNEMAN+WAVES
10 GRADIENT DRIFT INSTABILITY 129757 1% 70% 7 Search GRADIENT+DRIFT+INSTABILITY Search GRADIENT+DRIFT+INSTABILITY

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 GORIN, JD , KOUSTOV, AV , MAKAREVICH, RA , MAURICE, JPS , NOZAWA, S , (2012) VELOCITY OF E-REGION HF ECHOES UNDER STRONGLY-DRIVEN ELECTROJET CONDITIONS.ANNALES GEOPHYSICAE. VOL. 30. ISSUE 1. P. 235 -250 56 92% 13
2 OPPENHEIM, MM , DIMANT, YS , (2004) ION THERMAL EFFECTS ON E-REGION INSTABILITIES: 2D KINETIC SIMULATIONS.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS. VOL. 66. ISSUE 17. P. 1655-1668 58 97% 19
3 ST-MAURICE, JP , CHAU, JL , (2016) A THEORETICAL FRAMEWORK FOR THE CHANGING SPECTRAL PROPERTIES OF METER-SCALE FARLEY-BUNEMAN WAVES BETWEEN 90 AND 125 KMALTITUDES.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 121. ISSUE 10. P. 10341 -10366 42 98% 0
4 OTANI, NF , OPPENHEIM, M , (2006) SATURATION OF THE FARLEY-BUNEMAN INSTABILITY VIA THREE-MODE COUPLING.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 111. ISSUE A3. P. - 49 100% 16
5 KOVALEV, DV , SMIRNOV, AP , DIMANT, YS , (2008) MODELING OF THE FARLEY-BUNEMAN INSTABILITY IN THE E-REGION IONOSPHERE: A NEW HYBRID APPROACH.ANNALES GEOPHYSICAE. VOL. 26. ISSUE 9. P. 2853 -2870 50 93% 4
6 MOORCROFT, DR , (2002) OUTSTANDING ISSUES IN THE THEORY OF RADAR AURORA: EVIDENCE FROM THE FREQUENCY DEPENDENCE OF SPECTRAL CHARACTERISTICS.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 107. ISSUE A10. P. - 55 93% 15
7 CHAU, JL , ST-MAURICE, JP , (2016) UNUSUAL 5 M E REGION FIELD-ALIGNED IRREGULARITIES OBSERVED FROM NORTHERN GERMANY DURING THE MAGNETIC STORM OF 17 MARCH 2015.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 121. ISSUE 10. P. 10316 -10340 46 78% 0
8 DIMANT, YS , OPPENHEIM, MM , (2013) KINETIC SIMULATIONS OF 3-D FARLEY-BUNEMAN TURBULENCE AND ANOMALOUS ELECTRON HEATING.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 118. ISSUE 3. P. 1306 -1318 35 97% 15
9 YAMAMOTO, M , FUKAO, S , TSUNODA, RT , PFAFF, R , HAYAKAWA, H , (2005) SEEK-2 (SPORADIC-E EXPERIMENT OVER KYUSHU 2) - PROJECT OUTLINE, AND SIGNIFICANCE.ANNALES GEOPHYSICAE. VOL. 23. ISSUE 7. P. 2295 -2305 46 92% 22
10 USPENSKY, MV , JANHUNEN, P , KOUSTOV, AV , KAURISTIE, K , (2011) VOLUME CROSS SECTION OF AURORAL RADAR BACKSCATTER AND RMS PLASMA FLUCTUATIONS INFERRED FROM COHERENT AND INCOHERENT SCATTER DATA: A RESPONSE ON BACKSCATTER VOLUME PARAMETERS.ANNALES GEOPHYSICAE. VOL. 29. ISSUE 6. P. 1081-1092 38 97% 2

Classes with closest relation at Level 1


Rank Class id link
1 22395 INCOHERENT SCATTER//INCOHERENT RADAR SPECTRA//AURORAL IONOSPHERE
2 14319 MSTID//TRAVELING IONOSPHERIC DISTURBANCES//MEDIUM SCALE TRAVELING IONOSPHERIC DISTURBANCES
3 17499 EQUATORIAL ELECTROJET//IONOSPHERIC ELECTRIC CURRENTS//SQ
4 2936 IONOSPHERIC IRREGULARITIES//EQUATORIAL IONOSPHERE//PLASMA BUBBLES
5 14889 SODIUM LAYER//SPORADIC SODIUM LAYERS//MESOSPHERIC METAL
6 33602 ARTIFICIAL PERIODIC IRREGULARITIES//ARTIFICIAL PERIODIC IRREGULARITIES APIS//INTERNAL GRAVITY WAVE IGW
7 308 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//PLASMA CONVECTION//MAGNETOSPHERIC PHYSICS
8 8399 NOCTILUCENT CLOUDS//POLAR MESOSPHERIC CLOUDS//PMSE
9 23582 PULSATING AURORA//OMEGA BANDS//VLF HISS
10 2215 MIDDLE ATMOSPHERE DYNAMICS//WAVES AND TIDES//PLANETARY WAVES

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